如何使用 javascript 值设置 php 变量并在外部 php 文件中使用该 php 变量
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how to set the php variable with javascript value and use that php variable in external php file
提问by subhash
design.phpfile:
design.php文件:
<script>
$(".colr_sldr li img").click(function(){
var src = $(this).attr('src');
var value=src.substring(src.lastIndexOf('/')+1);
<?php $var = "<script>document.write('" + value + "')</script>";?>
});
</script>
and use this variable in index.phpfile:
并在index.php文件中使用此变量:
<?php
include('design.php');
echo $var;
?>
here while i am printing this variable it is getting zero can any one help
在这里,当我打印此变量时,它变为零,任何人都可以提供帮助
回答by sourcecode
you can't take var like this in php..
你不能在 php 中使用这样的 var ..
$var = "<script>document.write('" + value + "')</script>";?>
because phpis server side language..
and javascriptis client side.
For this you have to use ajax ,get and post methods
因为php是服务器端语言..
而javascript是客户端。
为此,您必须使用ajax 、get 和 post 方法
回答by Vitalii Strimbanu
the only solution I may know is using jquery on client side an sending your variable via ajax :
我可能知道的唯一解决方案是在客户端使用 jquery 并通过 ajax 发送您的变量:
script.js
脚本.js
$('document).ready(function(){
var myVar="Hello";
$.post('design.php',myVar);
});
and in design.php you have acces to your variable with $_POST design.php
在 design.php 中,您可以使用 $_POST design.php 访问变量
<?php
$myVar = $_POST['myVar'];
echo $myVar;?>
please check http://api.jquery.com/jQuery.ajax/for more details
请查看http://api.jquery.com/jQuery.ajax/了解更多详情

